Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc0ccb75749e186…

MALICIOUS

PDF

78.9 KB Created: 2021-09-06 08:21:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 2975ac542818ec5cfbfe589d31f8c394 SHA-1: ab115e955d0c4e3bb44a25664c5f7abaafcb9eee SHA-256: 9cc0ccb75749e1865a40b95a1cd00823d64dfcfe5ee2845f501825f6a505eb90
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded links are consistent with phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://next-engineering.com/userfiles/files/linibanal.pdf In PDF document text
    • https://trvstore.com/userfiles/file/jogukefajag.pdfIn PDF document text
    • http://24cvety.ru/upload/files/95216908136.pdfIn PDF document text
    • https://maintogelonline2.com/contents/files/92654003535.pdfIn PDF document text
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1611bf66b3d1c9---musetizamolefad.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad11afba713---97863751136.pdfIn PDF document text
    • http://yavuzselimvakfi.org/resimler/site/files/lesewewivufa.pdfIn PDF document text
    • http://agecarekorea.com/ckupload/files/36800748976.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb67638c1a---54522617746.pdfIn PDF document text
    • http://xn--kprq5pvqklteonubj6c.tw/CKEdit/upload/files/57945762037.pdfIn PDF document text
    • http://ntvietnga.com/upload/files/ganitovebawupuwinog.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/69378870777.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609d6699f13f7---xolewub.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c6aa9d40e9e---10604794327.pdfIn PDF document text
    • http://garantc.ru/userfiles/file/ziginidigizupiguteja.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160750842ab041---lobezemudezil.pdfIn PDF document text
    • http://lideparts.com/userfiles/file/1625080034.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d629906b8e---xederonugelepawaze.pdfIn PDF document text
    • https://apsco.ly/userfiles/files/velagemitokisitomuteg.pdfIn PDF document text
    • http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9491d0307---77279727528.pdfIn PDF document text
    • http://ritadas.in/userfiles/file/15334053702.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/gpe7ma298udd2ak2f6fpj0ufnm/76863448578.pdfIn PDF document text
    • https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/03aca616b5c067efe3ab446a4966f66a/1502725345.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=que+son+los+micronutrientes+en+las+plantas+pdfPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ced7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e6ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EE 10940 bytes
SHA-256: 285171edc26e00a8c44a6dc28145573da9f69edd064d77ca04ce13c05a890fc9
font_02_sfnt_off00010053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10053 18068 bytes
SHA-256: 4e9fd6692e055b6f60f5d53c4073f52485674c8330c8e283b0a71e90bc6adb88

Open this report in the interactive analyzer, or submit your own file for analysis.